Error code
Mitsubishi Electric PUHZ code 7130
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Meaning
Reverse connection of ATA/ATW communication wire Abnormal if communication wire of ATA side and FTC side are connected in reverse.
Member details
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View details as a memberPossible causes
(1) Each S1, S2, S3 of TB1 and TB2 are connected in reverse. (2) The connection from TB1 and TB2 to indoor controller board CNS and CNS2 are in reverse.
Solution
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Address of this page: https://www.remfixit.com/tr/mitsubishi-electric/puhz/7130